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首页> 外文期刊>Minerals >Reducing the Entrainment of Gangue Fines in Low Grade Microcrystalline Graphite Ore Flotation Using Multi-Stage Grinding-Flotation Process
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Reducing the Entrainment of Gangue Fines in Low Grade Microcrystalline Graphite Ore Flotation Using Multi-Stage Grinding-Flotation Process

机译：使用多阶段磨矿-浮选工艺减少低品位微晶石墨矿浮选中煤Gang石细粉的夹带

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摘要

A suitable grinding fineness and flow-sheet could potentially reduce the mechanical entrainment of gangue minerals in the flotation process of microcrystalline graphite. In this study, the suitable grinding fineness of a commercial graphite ore was estimated by mineralogy analysis and laboratory grind-flotation tests. The target grind size of this ore should be 92% passing 74 ????m based on the mineralogical evaluation and the flotation performance. A comparison of a single-stage and a three-stage grinding circuit was conducted. Experimental results demonstrated that the three-stage grinding circuit could effectively improve the separation effect, which was attributed to the reduction of slimes. In the end, a more desirable beneficiation result was obtained with the application of three-stage grinding-flotation process by minimizing gangue entrainment.
机译：合适的研磨细度和流程可潜在地减少微晶石墨浮选过程中脉石矿物的机械夹带。在这项研究中，通过矿物学分析和实验室研磨浮选试验评估了商用石墨矿石的合适研磨细度。根据矿物学评估和浮选性能，该矿石的目标研磨尺寸应为92％通过74μm。比较了单级和三级研磨回路。实验结果表明，三级研磨回路可以有效地提高分离效果，这归因于粘泥的减少。最后，通过最小化石的夹带，通过三阶段的浮选工艺获得了更理想的选矿结果。

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